If it does not match, it will easily damage the machine. Note: while connecting the controller to the wires, please make sure that you connect the right colors to the controller. Otherwise, the controller may be broken. 36V 500W LCD ebike conversion kit for rear wheel 1. 36V 500W motor 2. Spokes and aluminum circle 4. 36V 500W controller 5. Connectors and fuse 10. LCD (about Speed and power) 11. If It Does Not Match, It Will Easily Damage the Machine. Note: While Connecting the Controller to the Wires, Please Make Sure That You Connect the Right Colors to the Controller. Otherwise, the Controller May Be Broken. Ebike Conversion Kit for. Spokes and Aluminum Circle. We Use the Brake Cable with a Power Cord, Our Clients Can Use Disc Brakes. But Can Not Use Hydraulic Brake? When Installing, Make Sure That the Wiring Is Not Reversed. Otherwise, It May Damage the Product. France, Germany, spain, Italy. Feedback is very important to us. It is impossible to address issues if we do not know about them! Please keep the original box or packaging within 15days since item received. Your satisfaction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it’s non-workdays, please kindly be patient and wait till Monday.